The following are the three types of responses: Open, Accepted: The computer responds and inquires if there is anything more it can assist you with. Closed, Not Listening: "This port is currently in use and unavailable at this moment," the computer says. Filtered, dropped, and blocked: The computer doesn't answer at all.
A port scan is a technique for identifying which ports are open on a network. Port scanning is similar to knocking on doors to determine whether somebody is home because ports on a computer are where information is transferred and received.
Security professionals use port scanning to identify any security vulnerabilities on a network since it identifies open ports and services available on that network.
Install a Firewall: A firewall can help protect your private network from unauthorised access. It is in charge of the exposed ports and their visibility. A port scan in process can potentially be detected and stopped down by firewalls.
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Ankit Saini
5
very very nice course
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MD MOFAKKERUL ISLAM
5
I am at the beginning of the course, still finding no issue to complain about, but I'll find it helpful if all courses are taught in English although I have no problem with Hindi.
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Aditya Dhengare
5
how can i download notes
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Muskn Khan
5
yes
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Md Momin
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বাংলা ভাষা কোর্স দিন
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RIDHAM BHAVNAGARIYA
5
This Is one of the best course. even this is better then paid course. I need notes for that so where i get it.
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VANSH Ganganiya
5
Sir your explaining is very best than a teacher or profeser. I am noticing that you not left a single thing that we not understand💓
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DEEPAK KING 7813
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THANKS SIR JI
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Salman Zaheer
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After this course who hacked social media account.
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ASHOK LAVANIA
5
very Good NOTES SIR
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